Hand-stamp.



PATENTED NOV. v8, 1904.

M. K.w mp3 BMM DA NTm BSL KDH .NN Mmm E u u au 10 7.6 .w A Y m\ described and claimed.

UNITED STATES;

Patented November 8, 1904. i n l PATENT OFFICE.

HENRY M. ,KENDRICK, OF WASHINGTON, DISTRICT OF COLUMBIA, ASSICNOR-TO LAMB a TILDBN, OF WASHINGTON, DISTRICT OF COLUMBIA, 5A FIRM.Y

'HAN D-sTAivl P.

SPECII'EfCATION forming part of Letters Patent No. 774,675, dated November 8, 1904.

Appleman normaal. 20,1004'.

T0 (LZ/f whom/lt may concern.: ,E

Be it known-that lHENRY M .KENDRICIL a Citizen-of the'United States, residing at Washington, in the DistrictV of Columbia, have invented a new'and'us'eful Hand-Stamp, of which the following is a specification.

This inventionrelates generally to handstamps, and particularly to that class made entirely of rubber. A

The object of the invention is in a novel and practical manner to cushion the head independently of the` handle, thus to cause the printing-face ofthe stamp-to-strike squarely on the article tobe imprinted, insuring thereby a perfect imprinteven when the printingface is struck upon the article at an angle thereto; furthermore, to limit the degree of compression of theheadf-without jar to the hand of thefuser, .thereby preventing any blurred appearance of the imprinted characters due to excessive Vlateral expansion of the head; furthermore, to permit removal' of the head from thephandle and theattachment of a new head, thusY` effecting a saving in the use of the stamp; furthermore, to permit adjustment of the date-type to Cause them to occupy the same plane as the other types on the head, and, finally, to improve and render more efficient hand-stamps of the character stated. v v

With the aboveand other objects in View, as will appear as the nature of the invention is better understood, the same consists in the novel construction and combination of parts of a hand-stamp as will be hereinafter fully In the accompanying drawings, forming a part of this specification, andl in which like characters `of reference indicate corresponding parts, there are illustrated three forms of embodiment of the invention, it being understood that theelements therein exhibited may be varied orchanged as to shape, proportion, and exact manner of assemblage without departing from'the spirit thereof.

In the drawings, Figure l is a view in perserai No. r100,181. No model.)

handle, which may be of the usual shape shown and provided at its lower end with an enlarged base 2, formed within a chamber 3,

which is hereiushown as approximately coneshaped in cross-section; but it will be understood that it may be of any other shape desired and still be within the scope of the invention. The lower edge of the face is provided with a circumferential ange 4, which is by preference approximately dovetail shaped and is designed to engage a similarlyshaped groove 5, formed in the upper face of the head '6, the head being provided with a boss 7 which constitutes an air-compressing element, the boss being herein shown asapproximately Cone-shaped; but it may be otherwise contoured, if desired. The head is further provided with a marginal flange 8, which is adapted tov inclose the outer side of the lower portion of the base, as clearly shown in Fig. 2, and thus reinforce the latter against lateral yielding or spreading. The head is assembled with the base by a Suitable cement, which is interposed between the flange 8 at the base and between the lower end of the base and the head and is also lled into the groove 5. When the cement hardens, the chamber 3 is hermetically sealed and und er the impact transmitted to the head in use of the stamp the boss 7 will operate to compress the air between its outer walls and the inner ,walls of the chamber, and thus the air is caused to present anelfective cushion, which will not only in alarge measure remove all jar fronrthe handof the operator, but will also limitthe compression of the head. Moreover, the pneumatic cushion presented will allow the head to vyield readily, so

that the characters carried thereby always latl y impinge the object to be imprinted even though the head be struck at an angle thereto. By making the head and handle in two parts the former may be removed and replaced by anew one in case of damage, and thus effect a saving in the use of the device. The under face of the head is provided with the usual date-type socket 9, in which the date-type are held in any preferred manner, and as these form no part of the present invention illustration thereof` is omitted. v

In some cases there might be adifference in the height of the printing-type and the datetype, and in order to cause all of the printing characters to occupy the same plane the device shown in Fig. 3 is employed to adjust the datetype and consists of a plate 10, which is of the size to fit within the date-type socket, and through this plate projects a screw 11, having a shoulder 12, that bears against the inner face of the plate, the head of the screw being flush with the outer face of the plate. This screw engages a nut 13, which is embedded in the boss 7, and it is therefore yieldable, so that when the plate is moved away from the inner wall of the socket the plate will yield to impacts through its connection with the screw 11, and thus prevent injury to the date-type, which might otherwise occur if the plate were rigid and non-yielding in character. It will be seen that when the screw is turned to the left the plate will be moved outward, owing to the contact between it and the shoulder 12, and that when the screw-is turned to the right the plate will be seated against the under wall of the type-socket. The head is provided with the usual depending flange 14 to hold the printing-type against lateral displacement in use.

Instead of making the head and handle in two parts, as above described, they may be made integral, as shown in Fig. 4, wherein the air-chamber 15 is of the same general contour as that shown in Fig. 2, although it may be otherwise shaped and still be within the scope of the invention.

The device of this invention is exceedingly simple of construction and will be found thoroughly effective and durable in use for the purpose designed. By the employment of the pneumatic chamber all jar is absorbed, so

that in use the operators hand will not become Weary, as frequently happens with the ordinary form of hand-stamps.

Having thus fully described my invention, what I claim is- 1. A hand-stamp embodying a handle and a head centrally disconnected therefrom, a hermetically-sealed air-chamber interposed between the parts, and means for causing the yield of the head to be equal from center to circumference.

2. A hand-stamp embodying a handle, an

inherently-elastic head centrally disconnected therefrom, and means for causing the yield of the head to be equal from center to circumference.

3. A hand-stamp comprising a handle and a head, one of the members having ahermetically-sealed air-chamber and the other an air-compressing element disposed within the chamber.

4. A hand-stamp comprising a handle having a hermetically-sealed air-chamber and a head having an air-compressing element disposed within the chamber.

5. In a hand-stamp, a head having a datetype-receiving socket, and yieldable means disposed within the socket to adjust the type.

6. In a hand-stamp, a head having a datetype-receiving socket, and a yieldable typeadjusting plate disposed within the socket.

7. In a hand-stamp, a head having a datetype-receiving socket, a type-adjusting plate, and a screw and nut for adjusting the plate, one of which latter elements is yieldable with the plate.

8. In a hand-stamp, a head having a datetype-receiving socket, and yieldable means disposed within the socket, and accessible from the face of the head, for varying the operative plane of the date-type.

9. A hand-stamp comprising a handle having a hermetically-sealed air-chamber, a head having an air-compressing element disposed within the chamber and provided in its operative face with a date-type-receiving socket, and a screw and nut for adjusting the plate, one of said latter elements being housed within the compressing' element.

10. A hand-stamp comprising a handle having a hermetically-sealed air-chamber, ahead having an air-compressing element disposed within the chamber and provided in its 0perative face with a date-type-receiving socket, a nut housed within the compressing element, a plate disposed within the socket, and an adjusting-screwv passing through the plate and engaging the nut.

11. A hand-stamp comprising a handle having a hermetically-sealed air-chamber, and a head having an air-compressing element disposed within the chamber and provided with lateral reinforcing means.

12. A hand-stamp having a pneumaticallycushioned head, means for limiting the compression of the head, and a marginal ange for reinforcing the same against lateral distension.

13. A hand-stamp comprising a handle provided with a chamber and with a depending iiange, and a head provided with an air-compressing boss disposed within the chamber, with a groove to receive the flange of the handle, and with a marginal ange to bear against the outer side of the chamber.

IOO

14. A hand-stamp having a head provided my own I have hereto aflXed my signature in vithadate-{sype-roeivingsocket,anutriountthe presence of tWo Witnesses.v A e Within t 1e hea a screw engaging t 1e nut and provided with a shoulder, and a plate HENRY M KENDRICK 5 mounted Within the socket and bearing against Witnesses:

the shoulder. EUGENE M. TLLDEN, In testimony that I claim the foregoing as l J. H. JOGHUM, J r. 

